Molding and setting table for plastic bodies.



R. C. 0GBURN..

MOLD ING AND SETTING TABLE FOR PLASTIQBODIESQ APPLICATION FILED MAR. 28.1911.

LMLQGK Patented Sept. 25, 1917-.

IVITNESSES:

INVE 1V TOR.

R. C. OGBURN.

MOLDING AND SETTING TABLE FOR PLASTIC BODIES.

APPLICATION FILED MAR. 28. 1911.

1,241,007. PatentedSept. 25, 1917.

3 SHEETS-SHEET 2.

INVENTOR.

APPLICATION FILED MAR. 23. I911.

Patented Sept. 25, 1917.

v 3 S.HEETS$HEET 3.

ROLLIN C. OGBURN', 0F DES MOINES, IOWA.

MOLDING AND SETTING TABLE FOR PLASTIC BODIES.

Specification of Letters Patent. Patented Sept, 25, 1917.

Application filed March 28, 1911. Serial No. 617,502.

and more particularly to a table with an irregular movement produced bytwo pivotal supports, one on a line near the center and the other on aline near one edge of said table and to the means for handling saidtable and I do hereby declare the following to be a full and exactdescription thereof, reference being had to the accompanying drawings,which form a part of this specification.

The objects of my invention are: first, to provide two independentbearings for the table in order to handle the maximum of weight with theminimum of power; second, to provide means of lifting plastic bodiesinto an upright position with means of lowering said plastic bodiesgently upon their foundations; third, to provide means of handlingplastic or molded bodies, such as .fireplace fronts, walls, partitions,,wainscot ing, sections of bridges, retaining walls, silo walls,concrete stairs, floor and roof slabs, and other molded bodies, of suchsimple construction and. easyrmanipulation as to be available for commonuse without the necessity of technical ability or elaborate machinery.

My invention contemplates the use of a trestle with a shaft near itsapex, upon which a table is pivoted near its center, bearings attachedto the table near its base adapted to engage eccentric shafts attachedto main base or frame, carriages adapted to move forward or back uponsuitable carriage, ways, lifting bars connecting said carriages andtable, means of moving said carriages upon their run-ways and means ofcontrolling the movement of the table.

In the drawings Figure I is a side elevation of a portion of my deviceshowing plastic body, 2, table, 3, carriage, 4,.lifting bar, 5, andlower pivot 7 and illustrating the method by which. the body iselevated.

Fig. 'II is a detail view of lifting bar. Fig. III is a detail view ofthe eccentric shaft.

Fig. IV-- is a side elevation of my'invention showing some of the partsof my device not shown in Fig. I. Fig. V- is a detail view of asubstitute for Fig. VI. Fig. VI is a detail view of an operating leverto be used in connection with carriage shown in Fig. VII. Fig. VII- is adetail view of a substitute carriage and runway. Fig. VIII is a detailview of a portion of a substitute lifting bar.

' Fig. IX is an end elevation of the plastic body, 2, form 61, in whichsame is molded andtable, 3.

Inasmuch as my invention consists of a table, upon which cement or otherplastic, bodies may be molded in a horizontal position, said tablehaving two lines of pivotal support, with carriages and lifting barsadapted to elevate said table to a vertical position by virtue of theforward movement of said carriages, and eccentric shaftsadapted toengage the'lower bearings of said table for the purpose of lowering saidbodyby degrees to its final resting place, most all of which is operatedby a suitable means of forcibly moving said carriages, I do not confinemy invention to any particular means-of moving said carriages. In Figs.V to VIII, I show a substitute means of moving the carriages. Thecarriages may also be moved forward by means of elongated jack screws,

or by hydraulic or pneumatic power, or any restsupon said bearings,which I term secondary bearings, and upon a plurality of shores orprops, 35, 35, which may be ofany suitable form or material. The tablebeing firmly fixed in place and suitable forms erected thereon theplastic material is placed thereon and the process of molding isfinished. The top of the body as molded being preferably the outside,when said body has been elevated, it becomes convenient to finish theoutside of body any desirable way.

The greater part of the weight being on the side toward the foot, afterthe shores are removed the table will tend to move from position as inFig. IV toward the position as in Fig. I. A Windlass 38, is attached tolass are adapted to produce a gradual movement of the table untilitslower bearings, l

connects "with shaft portion 32. Then the table moves toward a vertical1 position the I body, 2, is prevented from slipping down bysti-rrupsyt), which arefastened to the tablet To these. stii'ru-p's areremovably att'achedp'arts;10,:adapted to engage'the shaft p'ortionw32,a-nd form'pivots which I term a2- primary bearing. The use" oftheprimary and secondary pivots, I regard as one ofthema jor elementso-f'my. invention. The table now resting on both-pivots-,-the carriages,4c, are advanced by'mean's of windla'ss, 36,andpulleysyS, and cable, 17,which, through-lifting bars, 5, causesthe table to move on pivot, 7,toward a vertical position as' shown in- Fig.1. The body, 2, is retainedon table by any suitable means.

1 After the table and body are forced to an approximately verticalposition the' final movement is produced by I rotation of Y shaft, 23:}which is shown in detail; in'Fig. III.

.The' 'bearin'gs, 7, of the table rest upon the portions32 of shaft 23,which portions 32 *arwehcentric-Fig; III: Theshaft 23 1'0- tates'in"bearingsTWhichare attached to the frame, 25,.bymeans of rod which maypass through any one-. iof several holes therein,- as 33. Onehalfrotation causes'the'eccentric shaft portion, 32,- to-pass-fromitshighest to its lowest] position. In settling a 1 wall uponyits"foundation it isne'cessary for the wallatobear equally at every points;This ma -be" accomplished by settling thewall 40 Y into fl'leW-concrete-placed up'ontlie' foundation, so that the new concrete when'ithardens will-form continuoussupport to wall.

In-Fig: I'a section of the foundation-at 1, iswremoved to allow thestirrup, 9, to enter,

and later put back in place. Thecarriage,

4," comprises? frame; with r(')'lle'rs," 20,- and 20, with holes, 21,through which a bolt'may be" passed-through. holes a's at 19, to lookcarriage to frame, 25; The carriage contains a-*shaft, -22, wl1ichengages with the 'liftin'g bar, 6.: The trestle is indicated: a-ti-6'a'nd 24, and' the. shaft, at 15, upon which the secondarywbearing, 11,of the tablerotates.

- The table, trestlev illldQlQWGl' frame may be constructed of Woodplanks such as l are used in 1 ordinary building, but: metallicconstructioni is preferred.

- In Fig. VILa portion of the lower frame, 4, consists of-an-I beain. Aracky55, and .pinion, 56, are employed to'movethe carriage, 5,8,-pawls,57, being attached to said qcarriagefq The shaft, 47, passes throughboth carriages; and iskeyedwith gear wheel; 56. Thez-lifting bar, 5, ofWhich-a portion-is shown in Fig. VTII, rides on shaft, 47. It is obviousthat any rotation of shaft, 47, will move the carriage" and elevate thetable. This shaft, 17, maybe rotated by a lever shown in F 1g." VI, inwhich the ratchet wheel, 52, is keyed at 46 to shaft, {17, and a pawl,53 is adapted to rotatesaid ratcliet wheel, 52-. .lAnya suitable handleor bar, 49 maybe used. In Fig. V a substitute is shown in which awormgear', lSgis keyed to shaft; a7, which rotates in bearing, 45. A worm,4:4,is adap'ted tomeshwithworm gear"-l8,' and a wheeland-shaft, 40andtl,

to rotate'said wormgear; T-he' wholeis'hel'cl T to place by F frame, 42,which maybe bolted to carriage by anyone of numerous holes, 48'.

The outside or face of thewa'llor 'other plastic body, 2, being-upwardwhen molded,

it is obvious than 'an'y exterior finish may i be employed The interiorform of body, 2, may be" goverened"by forms cr dles; 61, which maybeattached to table, 3 ,-in any suitable ways as'bolts; 6'0." In 1 thisw'a y any interior formandlfinishmay-be secured; It 5 .issimilarlyobvious that the devicemay" be manipulated so that in moldingposition the outside of the body: may be I down: and the inside up.

Itwill-be apparent thatwith a tabld havmg two primary bearingsrand onesecondary bearing, likewise oneicarriage,-runeway and liftingbair,-a'=light'body could be handled'. The foregoing'might be termedthree point suspensions- Similarly a table with two primary bearingsand-two secondary bean ings-might be 'termed four pointsuspension, andone having three of: each: of the bearings termed siX point suspension.In" case of a} plurality of such bearings the shaft. in both primary and'secondary bearings would preferablyextend'the fu'll length 'o'f tliewall or body in order-"that the' m'ovement 'of said body. might be Iuniform throughout its: en tire lengths It will-be obviousthat theprinciples of my invention are unchanged bytheuseio'f plurality ofbear'ings. 'l wo, three or four'carriages with corresponding number'ofbearings at-foot of 'table may be employed without dep'arting 'ffomthe:invention. The relative height of the trestle is not intended tobefixed, neither doI' limit myself toa horizontal positionlof table" atthe time of casting the body. The construction and relative positiom ofparts may" be considerably varied without departing from the spiritof'myinvention, Which-Ii regard as res-iding'in-a tableiwith twodines ofpivotal support; means of elev atingi on'e edgeof said table comprising:carriagesand lifting bars as illustrated, means of loweringitable bydegrees when in a" near verticalposition, andthe combination with saidtableof suitable forms, cores and such.

What I claim as new and desire to secure by Letters Patent, is

1. In a molding and setting table for plastic bodies, the combination ofa base, a trestle-like table support rising therefrom, a table fulcrumedthereon, stirrups and molding forms on said table, eccentric shaftportions mounted on said base, means for rotating said shaft portions,bearings positioned on said table to register with said shaft portions,other bearings centrally positioned on said table to register with saidtable support, with an actuating mechanism consisting of tracks laid onsaid base, carriages adapted to move thereon, lifting bars connected tosaid carriages and to the table,

and means for moving and controlling the carriages.

2. In a molding and setting table for plastic bodies, a table providedwith means for shaping and retaining plastic bodies relatively true toposition and form together with means for actuating and controlling saidtable, in combination with a duplex supporting mechanism consisting of aprimary axis comprising an eccentric shaft portion journaled on a base,and means for its rotation in conjunction with bearings marginallypositioned on the table to register with said shaft portions, and asecondary axis comprising a shaft mounted on a trestlelike element inconjunction with bearings intermediately positioned on the table toregister therewith.

3. In a molding and setting table for plastic bodies, the combination ofa base, a support thereon, a table fulcrumed on said support, a shaftjournaled on the base and having an eccentric portion, means on thetable for engaging said eccentric shaft por tion, means for rotatingsaid shaft, a carriage movable on the base, lifting means interposedbetween the carriage and the table, and means for holding the carriageagainst casual movement.

4. In a molding and setting table for plastic bodies, a table providedwith means for shaping and retaining plastic bodies relatively true toposition and form together with means for controlling said table, incombination with duplex supporting mechanism consisting of a primaryaxis comprising an eccentric shaft portion mounted on a base and adaptedto be rotated, means positioned on the table to engage said eccentricshaft portion, and a secondary axis comprising a shaft mounted on asupport in conjunction with a bearing intermediately positioned on thetable to engage the same.

ROLLIN C. OGBURN.

Witnesses WM. E. HENRY, C. E. PIGKERING.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

Washington, D. 0. o

